Prices on shares in selected power companies and in companies with largetrading activity in electricity:May 17 (Oslo: May 14)Company Closing price Change in % VolumeSTOCKHOLM (SEK)Arise Windpower 47,20 -2,08 29 758Eolus Vind 42,50 3,66 19 935Holmen 194,00 -3,00 2 549Stora Enso 58,50 2,63 21 691COPENHAGEN (DKK)Vestas Wind Systems 303,80 -3,13 1 625 625HELSINKI (EUR)Fortum 18,37 -0,49 1 266 089Stora Enso...